Ever hear of Level70 Elite Tauren Chieftains? Well, here you go!

/script PlaySoundFile("Sound\Music\ZoneMusic\DMF_L70ETC01.mp3")

Copy-paste that into the chatbox, while you have Music turned on, but not looped. "The Power of the Horde"

I love Horde, therefore, I love this song. The "DMF_L70ETC" means "DarkMoonFaire_Level70EliteTaurenChieftain". The song was meant for the Darkmoon Faire, but they used a different song instead.